No. I've just put "permission java.io.FilePermission "/mnt/us/-", "read,write,execute";" to /opt/amazon/ebook/security/external.policy when tried KindleVNC or KindleTerm. But all this permissions stuff still looks misty for me. Even if I grant "permission java.io.FilePermission "<<ALL FILES>>", "read,write,execute";" for all kindlets, I still cannot execute anything except scripts in /mnt/us. Even simple Runtime.getRuntime().exec("/bin/ls/") returns "java.security.AccessControlException: access denied (java.io.FilePermission /bin/ls execute)".

@drauger: exactly. And that's what the Kindlet jailbreak is there for. It allows Kindlets to request Permissions at runtime, it allows them to load classes which are normally "forbidden" to Kindlets... and it does not require the modification of the system's security policy files. Some background information is here. And now let's get back on topic.

@twobob: much too complicated for end users . Everything "ota2" supports multiple devices, so should be done like that (with the exception that you can't mix k4 and k5). But essentially, it's enough to provide ONE file for ALL Touch/Paperwhite users, and one file for all K4 users. Check the devcerts or "rescue pack" files that I published for Touch devices for examples

Matters are different for the K3 ("ota"), where each device needs its own installer... at least AFAIK.

Like magic, the diagnostic query(ies) now work on the Kpw-5.3.3 (that 711 thing).

...
Place the 'install' package on root of USB storage, eject USB storage, un-plug the cable since you are about to mess with the cable's hardware interface . . . .
Do the usual: home -> menu -> settings -> menu -> update Kindle routine.

When the Kindle completes its update, still with the USB cable dis-connected, try:

Kindle Launcher -> 711 (Network Info.)
** Which now does not work - it worked just prior to this installation! **
*** WTF? ***

** Guess we need another intermission while I confer with authors. **
....

Hmm... I suspect here there be dragons. but not related to the installation. actually I think it's something to do with instantiating the 711 window. I can replicate your fail now... (intermittently - trying to tie down what kills it) And I can "fix" it, (go to settings page - type ;711, now close it, try script again, it works) Definitely dragons. Will have a serious think about making those scripts do something solid and helpful on all devices now that the final push on device support is POSSIBLY at an end. *fingers crossed*

Following the instructions on the thread, I first created an extensions folder on the root of the drive and then proceeded to copy "update_k5_ALL_PW_ALL_kindlet_jailbreak_install.bi n" and "update_k5_ALL_PW_ALL_devcerts_install.bin" and updated.

Now I get an error that says "The update was unsuccessful." and "Update Error: 3".

Following the instructions on the thread, I first created an extensions folder on the root of the drive and then proceeded to copy "update_k5_ALL_PW_ALL_kindlet_jailbreak_install.bi n" and "update_k5_ALL_PW_ALL_devcerts_install.bin" and updated.

Now I get an error that says "The update was unsuccessful." and "Update Error: 3".

What am I doing wrong?

If it helps, I have the custom screensaver from Yifan Lu installed.

You are probably restarting the Kindle rather than using the "Update Kindle" menu entry.